Lumber-piler.



Lwonusom Lungen man. APPLICATION HLED M.l6.1i.` w15.

1,231,027. l Mmmm 26,1911, Y :suns-sagst n.

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flla doHNaod.

E. JOHNSON.

LUMBEH PILEH. "APPucAnon min Aulcms. |915.

UNITED STATES PATENT OFFICE.

muc JOHNSON, orsEATTLE, WASHINGTON.

LUMIBERILEB.

To all whom it may nom/'erm lie it known that l, Elue Jonxsox, a eitiloading, and eonsists of the-parte: and com binations of parts which will. be hereinafter particularly defina] in. thelalms.

In the `agmompazr'yinig"drawings I haveV shown my invention in the form of con` struction which is new preferred by-.me. y

Fi re 1 is an elevationof a. piler having my taken from one 'side' edge.

eviees applied thereto, this vi'evvv being44 Specification of Letters Patent. i

Patented June l26, 1.917.

Application led August 16, 1915. Serial No. 45,807.

by any suitable means, this not being herein shown.

'l`wo'loading arms` -l are provided, one' al each' side of the frame. v- 'lhese arms are pivoted at some point barliufard or insideof `the frame memlnfrs l and projeet outwardly Fig. f2, is an elevation. of the sameiparts taken from in front. i i Fig. 3 is a detail showing the construction of the meehanism fer scales.

Fig. 4 is a side elevation' showingon a him/er soalerthe mechanisnx whereby the auy tomatie loader is operaied by the lumber earrying chain. v Fig.' 5 is a seutionlaken through one of the standards 'of the` pile-r just' above the V`meeimniem shown in Fig. 4,'.and f Fig'. is a side view of tlie Vhooked 'link by whioh the automatic loadenis'operated.

The lumber piler herein 'illustrated is, in its general features. of a form fofeonstrue tion whirh. is now inl'use. `This structure ronsisls of ai frame composed of. starnlaicls 1 with suitable connecting braces, as 10fhese 'standards `formingr guides for-'two 'endless` f-hains. the two standards being'separated a; slillrient distan-ee 'to form a bearing of'substalrliallength upon'whieh to carry the lum-` her. This" frame .is provided with 'guide wheels l1 at the top, and l2. at the botffom,`

over which the chainy passes. The chain is provided with lumber carrying fingers or ights 20, which are arranged in pairs. Be

for operating the. trans-- or toward the front to a distance bevond the ends o n-ovid'e sulieient holding room for the 1um er being:y handled. As a matter of com venienee, in reversing,r these arms.` to' thereby permit loading i'l'ox'n either side of the piler,

point a sufficient ther flights 2,0' to the pivot point 40 should be lof-ated. on the l Central frame of the structure. lvhenso lo cated, the; arm may be removed from lite pivot, reversed in positio'ii and resecured upon its pivot, whereupon it may be. used for loading'the piler from the other side,

The loading arms 4 are preferably provided with aseries of rollers-'or wheels ft2, which project Somewhat Aabove theA 'upper edges of the a11ns,.whereby a board,f.as 45,

plaed'thereon will be moved laterally byV inelining` the arm '4 only` a. slight` amount.=

The lumber is placed upon or over -thezfou'tver end of the arnlsl while the-latter are 1n their loweronost position, which position is indicated by'dotted lines in Fig. 1.- Means are provided u-'hereby these arms are` autolvnatieally raised into inclined position. :is is shown iu Fig. l, this elevation being timed ,toy correspond with tiuipositions yof the passing flights to cause the lumber to be moved inward into the space betwen the flights of a pair', as is indicated in Fig. l.

The means for elevating the loa '1i i g arms members which are shown in plan in l"ig.5. these comprising. arms 22, upon the ends of' channel l in lwhich the chain moves. 'By

sis

f are as follows: The chains?. carry L1. srriesof which are jonrnaled-rollers 21, which Jpro- 9.5'

.10ct laterally beyond-the edges of the guide placing these rollers hall way bete-"een the y nights and by properly proportioningr the" links 3. by which the bari; 4. are raised, they may be shileled to, operate alike at either side of lthe pilier.

' The linie,I Hare pi'voted at 30 to the arme 4.

At their upper ends they are each provided with a head 31 which is olf-set at one side, said off-set being "-w'ardly facing sur ace 33, which is' posi taveen the two fin ers of each pair, the lum berl is placed. bese chains are operated tioied so as to normally be in the path 'of movement'nf thetappet rollers 21. carried h Athe chains. When one of these tappetrol ers contact with the hook thus formed on the link 3, this llink will be raised, carrying wit tthe loading arms 4. Mounted upon the channelbars 1, which form themainposts of the frame are releasing tai ets 13, which engage the inclined or camite upper surface 32' of the head of the link 3, to force this link backward and thus free it from the lifting tappets or rollers 21, thus permitting sure a `positive backward return of the links 3l provide a. roller 34 at the sidevof the link, and a cam finger.' 14, with which said roller engages. The descent of the link 3 thus causes 'the link to be positively moved forward into position to engage the next lifting tappet 21.

Transfer skids 5 are provided,.these extending alongside of the loading arms 4 and being in some respects of similar construction. These transfer skids are pr0- vided with rollers o r wheels 51 to facilitate easyY movements of the lumber thereover'. These transfer skids are also mounted -so as to be moved vertically through a slight distance. I have herein shown these skids as pivoted upon the central axis of the frame to thereby facilitate their being used at either side of the loader". V Under these conditi ns it is desirable to operate transfer rollers for the movement of the lumber lengthwise 4into position alongside of thel piler. I have shown three such rollers 6, these being journaled in a frame 60, which may be placed in position alongside of the pi r. These transfer rolls have their axis extendingin the same direction as thetransfer skids 5. They are placed at such an elevation that their upper ed .is

slightly higher than the rollers 51 o the- ,transferpskids while the latter are in their lowermost position andsli, n1;htly below the upper edges of the same rollers 51 when the transfer skids are inv their uppermost position.

It is intended that while the lumber is being moved endwise into position in front of the piler, during whichtime it will besupported b the transfer rolls 6, that the .transfer skids 5' be 'maintained in their lowermost position. When the lumber has been placed in position alongside of the pilerl v. it is transferred to the loading arms 4 by raising the transfer skids 5 enough to raise the piecevof lumber 46 off of the transfer rolls whereupon the lumber may be 'easily moved laterally, being supporteduponv .the rollers' or wheels 51.

The manner of raising the. transfer 'skids is as follows:l Theframe 6(1,has a' shaft 7 extending lengthwise thereof .and provided 'with` as cam 70'for each ytransfer skid. A

vertical post or bar 8 is provided with two l ngersBO adapted to strnddle the shaft 7 to thereby permit raising and lowering' of an equivalent flange 81, which engages the' opposite side of the cam 70, thereby maintaining it in position lengthwise of the shaft. By turning the shaft 7 the posts 8 will be raised 'or o transfer skids 5. t

An operatin lever may be pla-eed directly upon the sha t 7 or an extension thereof. I .havez however, shown a transverse shaft 90 uporluwhich an operating lever 9 is placed and hatte connected the two shafts 7 and 90 by means of bevel gears 72. These ears may be segmental gears only as these s afts will be moved only throu h a comparatively small angle. AThe shaft g may be provided wered carrying with them the with arms 71 which extend upwardly in Vare raised. To prevent the possibility of lumber being moved inwardso as toget behindthe raised ends of the loading arms 4 I provide the latter with 4downward extending fingers 41, of such length that their lower ends never get above the transfer skids. `These act as (stops to prevent the lumber getting under the .loading arms.

To positively insure that the tappet rolls 21. carried by the chain, will not be forced outward by their engagement with the hookp surface 33 of the links 3, I provide a member 55 which is secured to the standardsor posts 1, these members havin' webs 59 extending forward at each side o the post and a finger 56 extending downwardia-nd forming a channel forengagementwith the outer surface of thelifting rolls 21. The' side. webs 59 are spaced outward from the side edges of the posts 1 a sufficient distance to accommodate the lifting-rolls 21, and the retaining ingers 56 projet backward` 'or 'toward the center o the post as is clearly shown in Fig. '5.

The releasin lupon this lmem r 55, each tappetbing cg- 1s a `justay e p vertically in the slot 58 of a downwardly' ried by a. securing bolt whic projecting arm 57. By this means the vertical position of the freleasing tappet may ad 'usted e transfer skids 5 are provided with upwardly projecting stops 52 which are located ]'ust outside the lineof travel of the outer ends of theA flights 20, which act to prevent lumber being moved far enough to tappets 13 are also mounted-"^ ma Leal,

` outwardly of' v the llights a distance to re-l aire the ylumberthereon, and means for v@zing said-farm actuated by lthe chains at passageiofeach set of flights.

e, In a lninber pileninfcombination, endehains havingflumbe carrying flights, top and bott/om guides for Said chains, means for actuating vthe chains, loading .arms pivated baokwa'idof. the chains, and extending outwardly' offthe flights `a distance to re itl freive the lumber thereon, a hook arm connected with' each loading arm adjacent the chain, and tappets carried by the chains to ci'igage said hook -to lift the loading arm at the. passage of each set of flights.

In a lumber plier, in combination, endless chains lia-ying lumber carrying fingers thereon, hop .and bottom guides for .said obains, mmc'ggabtuating the chains, traneiier bars adapted te receive the lumber, loading bars adaptdlt'o receive the lumber from Athe transfer bars, lifting-tappets carried by the chain for eachfset of carrying fingers, a 'inelxiber4 connected with the lifting bars and ada tube .actuated by- 'engagement with sai. tappets, and fixed releasing tappetsl'po'- eitioned'to engage said lifting member to release it rom'the litingtappets.

4. In al berpijlenin combination, end

l less chains having lumber carrying fingers thereon, top' bottom guides for said claims, means for actuatingthe chains, transm iter bars adapted'to'reeeive the lumber, loading bars adapted to receive the lumber from the transfer bars', a link ivotedv to each lift-V ing bar and Aextending alongside the chains,

the upperende of said links being provided I with a; downwardly facing surface, liftingV tappeti; carried by the chains for each set of ear l f ,and adapted to engage said donno arollfy' facing surface of the links, and ramdilre menibere controlling said llnks to release them and. bring them back into en-V beyond the `tently lifting -PZ aging punition.

5. In a lumber piler, the combination with the lumber elernting mechanism., of loading arms pivoted at the back side of the elevat ing mechanism and projecting forwardly thereof, lumber supporting wheels carried by the part of the loading armswhich extend chaine. and means for intermittlie loading arms by the elevating'meehanlam to transfer the lumber to the 6, lu a lumber pilier. iu combination. an'

soL

lumber carrying flights, of loading arms pivoted at the back Side of the eleijatng mechanism and brojecting forwardly: there of, wheelsl carril-il by that part of the load ing arme extending beyond the elevating mergibeis and supporting the lumber placed thereon, stope independent of' the loading arms and outside of the path of movement of the flights and limiting the movement of the lumber upon the loading arms, and means for intermittently lifting the loading arms by the elevating mechanism to transfer the lumber to tbe flights thereof.

8. In alumber piler, a lumber elevating mechanismhaving lumber supporting `lingers, loading arms adjacent and extending aurons the path of movementl of said fingers and. pivoted attbe opposite side of the elerating mechanism from their loading ends,

and means intermittently connecting said loading arms with the lumber elevating mechanism, whereby the loading ends of said armsare given .a bodily movementwith the said fingers and a tilting movement towardV 'engage said tappct to raise theloading arm,

the catch member having a 'cam surface,'and a member fixed to engage ,said cam surface to release the catch member at a predetermined point. 10. In a lumber piler, in combinationhan elevating chain' having lumber carrying flights thereon, a tiltable loadingy arm extending outwardly from said chain, a pro jecting member carried by the chain for' each'set of flights thereof, a link connected with the loading arm and haring a tooth surface engaged by said projecting members to raise the loading arm, and an' adjustably y Fixed member .'-ulfnitedV to engage the link 'to disengage it from said projecting member.

11. ln, a lumber piler. in combination, an

elevating chain having lumber carrying flights thereon, a tiltable loading Varm ex tending outwardly from said chain, a projecting member carried by the chain'for each set of flights thereof, a link connected with the loading arm and having a tooth surface normally placed in the path of said projecting members and an inclined surface above said tooth, and a disengaging stop positioned to engage said inclined surface to release said link at a predetermined point,

12. In a lumber piler, in combination, an elevating chain and lumber carrying flights carried thereon, a loading arm pivoted rearwardly 'of the chain and extending forwardly of the flights, a linkpivoted to the loading arm adjacent the chain and having a downwardly facing tooth, a disengaging surface inclined to the direction of movement ofthe chain and a side pojecting member, the chain carrying a series of later ally projecting members ositioned alike relative each to its particu ar flight and to engage the tooth of said link to raise it, a

disengagiug Wiper positioned to engage the inclined disengaging surface of the link, and a fixed member having a cam surface engaging the side projecting member ofth link to throw the link into engaging position When it drops.

13. In a lumber piler, in combination, a frame', an 4endless chain having lumber car-- rying flights and a lifting tappet for each set of flights, a pivoted loading'arm extending outward ofthe flights, a ,link pivoted to the loading arm and having a'tooth surface normally -raositioneel to engage the lifting tappets, a l `rd finger carried by the frame in position )to be engaged by the lifting tappets 'Y While engaged with said link, and means for disengaging said link` at a prede termined point.

Signed at Seattle, vvlf'ashington, this Hlth day of August, 1915.

ERIC J OHN SON 

